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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 3/2/2011 3:20 AM   
res3567


 

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Status: offline 		Hey wayne....what is your progress?......the season is fast approaching..... lets get ready to get it wet.......in da water.......what is up? 

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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 4/12/2011 4:25 AM   
kochj


 

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Status: offline 		Question guys....

New to boating...(not to rc..done it all)
I saw a vegas with a OS 18tz car engine in it...
NO need for water cooling?? Perhaps I missed something...

Running 50% you don't need it??

I have many .21 buggy engines....could I place one of those in here as well??
or is it the connection of the shaft that would be of issue??

I can get those machined if need be...???

Or is this not nec. becasue they are fast enough?? I would think going bigger engine= More power....
W/o having to run 30-50% Nitro!....
Seems to making some cents here...Litrally...??

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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 4/12/2011 4:29 AM   
kochj


 

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Status: offline 		Okay I see how the mod to the engine is....
I thought that this is how it was done...
(if it works on the pipe, why not on the engine head?) LOL....

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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 4/12/2011 6:53 AM   
toyotatruckin



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Status: offline 		Yeah if you end up running to hot give me a shout and I can water cool that TZ for you
http://www.aircapitolhobbies.com/Engine_Mods.html

They look just about like a CVRM when done


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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 4/12/2011 3:44 PM   
kochj


 

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quote:

ORIGINAL: toyotatruckin

Yeah if you end up running to hot give me a shout and I can water cool that TZ for you
http://www.aircapitolhobbies.com/Engine_Mods.html

They look just about like a CVRM when done



Very nice....

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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 4/12/2011 3:51 PM   
kochj


 

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Status: offline 		Has anyone in the boat racing scene know if there has been any talk about upping the size of engine so one can run less nitro??

I realize that there isn't any engines that come in a .21 size that are RTR..bolted in.
Perhaps if there is enough demand, one could regulate the amount of nitro into the .21

Has anyone talked about conversion from a DLE20 ito a .18 size boat?
Would the 20cc gas engine be too heavy??
30oz With ignition....

With the price of ignitions, one could install on the stock .18 size motor for 40$...

At the very least, it may save someone from getting wet, to retrieve there boat....
and it would save on fuel costs.... as one can lean out the motor when running ignition...

Just thoughts....


The boat is fantastic the way it is....

320$ for what you get is very good....
A quiet pipe to boot??
Is it a actual quite pipe (normally run 100-200$) or is it a muffled pipe??



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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 4/12/2011 4:53 PM   
Dan S



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Status: offline 		I don't drop in nitro % weather I run a .12 or a .45, I run 35% on everything and that is not considered high Nitro.
My racing friend runs 55% from his .12 to his .45.

the DLE20 is almost 2 pounds (with EI), that is a major weight difference compared to the .18
with only a max of 9000 rpm I don't believe it would get an MV moving that much, and yes it would be to heavy.

regulating the amount of nitro is not something I see for the future.

yes, it is a quiet pipe, keep in mind that a quiet pipe is not always quiet has one may think, its just that it is below the max allowable db (90 or 92 db), I believe the pipe is at 82 or 86 db.

Dan.

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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 4/13/2011 3:05 AM   
kochj


 

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Status: offline 		VId off yotuber... interesting
http://www.youtube.com/watch?v=gPqpXimQwpo&feature=related

Miss Vagas with a .21 O.S. in it.... (didn't have hatch on it) so not good...

If possible, I could run my buggy engines in it.???
Does someone make the couplers to place on a .21 that would match this boat??

Thanks..

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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 4/13/2011 3:10 AM   
kochj


 

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Status: offline 		One could easily turn the stock motor to run gas...

Place a china ignition w/a spark plug (small one works with same hole as glow threads)
Add gas .. (change out the the inners of tank so gas compatable)
go....

One wouldn't have to worry about the quirkyness that happens on planes, because the front doesn't go strait up (causing leaning out)

You wouldn't have to do anything to run nitro again, other than change inners of the tank.... (nitro will run great with a ignition and spark plug)
I have this setup on my OS twin...1.60...Gemini....

I would think the performance would go WAY down from Methanal fuel though..

This would be fine for those that didn't need the speed, and wanted cheap fun all day...play...



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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 4/16/2011 7:39 AM   
res3567


 

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Status: offline 		Ok....there aint no quiet pipe on the original MV...However....the MVD DOES have a quiet tuned pipe. And it costs about $20 shipped....when TH has them in stock. The Q18 MVD pipe.
Check it:

http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXWPL9&P=Z
quote:

ORIGINAL: kochj

Has anyone in the boat racing scene know if there has been any talk about upping the size of engine so one can run less nitro??

I realize that there isn't any engines that come in a .21 size that are RTR..bolted in.
Perhaps if there is enough demand, one could regulate the amount of nitro into the .21

Has anyone talked about conversion from a DLE20 ito a .18 size boat?
Would the 20cc gas engine be too heavy??
30oz With ignition....

With the price of ignitions, one could install on the stock .18 size motor for 40$...

At the very least, it may save someone from getting wet, to retrieve there boat....
and it would save on fuel costs.... as one can lean out the motor when running ignition...

Just thoughts....


The boat is fantastic the way it is....

320$ for what you get is very good....
A quiet pipe to boot??
Is it a actual quite pipe (normally run 100-200$) or is it a muffled pipe??





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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 5/8/2011 7:32 PM   
SilentSeven


 

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Status: offline 		What's this - servo 'surging' issues.

Miss Vegas with stock aquacraft radio.  (edit:  this is not the deuce with the digital radio unit)

When the boat radio is on and I touch the antenna, the throttle and rudder servo's randomly surge and move.  Anything I can do about this?  It's strange.


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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 6/7/2011 7:44 PM   
SilentSeven


 

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Status: offline 		Vegas v1 question on engine rebuilding....

What is the amount of play that should be in the rod to crank bearing connection?

I need to put in a new piston and sleeve; cooked the motor via getting too lean.  When disassmbled, I seem to have a bit of vertical play in the rod to crank connection.  Reversing the rod to put the piston pin on end on the crank side does not change the play.  I don't feel any play in the rod to piston pin connection.  I don't see any scoring on the crank.

Is this normal or do I have a problem?

Thanks!


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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 6/7/2011 7:47 PM   
SilentSeven


 

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Status: offline 		Also, I need an exhaust gasket...looks like it's NLA.  What are people using?




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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 6/8/2011 1:47 AM   
Duelfuel


 

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Status: offline 		Have you tried emailing the listed contact from the manual? The part number:
SUPG4666 .... Exhaust gasket part no
Email for parts order
 

quote:

ORIGINAL: SilentSeven

Also, I need an exhaust gasket...looks like it's NLA.  What are people using?






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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 6/8/2011 2:33 AM   
SilentSeven


 

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Status: offline 		Good idea to contact Hobbico.

That part number shows for the Deuce SuperTigre engine, not the Aquacraft...  do you know if they cross over?


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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 6/8/2011 5:46 AM   
cpeisher



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quote:

ORIGINAL: SilentSeven

Also, I need an exhaust gasket...looks like it's NLA.  What are people using?





Anytime i need an RC gasket in a hurry i just use a cereal or Ritz Cracker box and cut it to shape using scissors and/or a hobby knife.  Works perfect.




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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 6/8/2011 3:33 PM   
SilentSeven


 

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Status: offline 		Hobbico advises that this exhaust gasket works -    DTXC8259

Anyone have suggestions on the rod connection question above?


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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 6/8/2011 6:35 PM   
amax



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quote:

ORIGINAL: SilentSeven

Vegas v1 question on engine rebuilding....

What is the amount of play that should be in the rod to crank bearing connection?

I need to put in a new piston and sleeve; cooked the motor via getting too lean.  When disassembled, I seem to have a bit of vertical play in the rod to crank connection.  Reversing the rod to put the piston pin on end on the crank side does not change the play.  I don't feel any play in the rod to piston pin connection.  I don't see any scoring on the crank.

Is this normal or do I have a problem?

Thanks!


There should be VERY LITTLE Play on the rod to crank bushing, The AQU engines are Notorious for stretching the lower rod journal out and eventually throwing the rod,, I would Definitely Replace it.

I don't use an Exhaust Gasket, I just use RTV Silicone and let it dry overnight,, I haven't had an exhaust leak from That Spot since I went to Silicone.

With Most radio systems especially AM, if you get the TX and RX close together Will Twitch. I generally keep the TX antenna Down until I'm ready to Launch.

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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 6/8/2011 8:23 PM   
SilentSeven


 

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Status: offline 		Thanks Amax.   Can you clarify what should be replaced?  Is it the rod or the crank? 

I'm a bit perplexed on why the journal is loose when flip the rod.  Regardless of how the rod is flipped, its loose on the journal and appropriately tight on the piston pin.  That seems to suggest that it's the crank pin with the problem.  Buuuuut...no scoring on the crank pin.

Strange...

PS - thanks for the note on the RC twitch.


< Message edited by SilentSeven -- 6/8/2011 9:23 PM >

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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 6/8/2011 8:46 PM   
cpeisher



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Status: offline 		I've managed to destroy my superstart gears.  I just got off the phone with Hobby Services, and they are sending me a new one, but slightly different.  I spoke with Mike, and he says that this...

http://www3.towerhobbies.com/cgi-bin/wti0095p?FVPROFIL=++&FVSEARCH=dtxp6026

is a drop in replacement on the Vegas Engine, and it's what he uses on his Vegas.  The stock backplate has a Bevel/Miter gear arrangment, but the replacement above is a simple spur gear, and Mike says he's been running it for quite some time with no problems whatsoever.  So for anyone who doesn't want to go the starter belt route, which i did not, this is a drop in replacement that is not likely to strip out like the stock setup.


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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 6/9/2011 2:58 PM   
amax



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Status: offline 		The AQU engines I've grenaded always blew the rod journal apart. It's been A While since I even Touched an AQU engine so specifics are limited at best
In general your Crank to Rod connection will be looser than the Rod to piston because it creates more friction due to increased movement so it needs more clearance for lubrication.
When the rod starts to fail it normally Very obvious when you look close at the journal. If your getting the same fit from Both ends of the rod I would have to Speculate(since I'm not standing there,,lol) and say it is the Normal amount of play for that part.

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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 6/9/2011 3:15 PM   
SilentSeven


 

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Status: offline 		Thx Amax.  I'm going to resleeve the motor and put in a new rod and see how it behaves. 


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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 6/15/2011 12:36 AM   
barmonkey


 

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Status: offline 		Not like it hasn't been done before, but here is my attempt at installing an O.S. 21VZ-M into an old Miss Vegas hull. I have been wanting to try this for a number of years...but finally have got around to putting it all together!

It has a 150 flex cable with a 3/16 stub and for now I am using a Grimracer 40x52 three blade prop. The motor can certainly handle more prop, however I don't think the hull can handle much more...especially in rough water. Also, I have installed an 8oz tank, which I hope is enough to get through six laps plus mill time.

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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 6/15/2011 1:25 AM   
Duelfuel


 

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RE: AquaCraft U-18 Miss Vegas Hydro Thread_Make it Fast! - 6/22/2011 4:03 AM   
Pete48


 

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Status: offline 		Wow! You guys have really got her moving. I'm impressed. It's been awhile since I posted (probably around page 2 or so!! haha!!). Anyways, it's been fun catching up. Nice work!!

BTW - Here are a few straight runs with no turn fin on one of my vegas boats converted to electric. For amusement only!!....

http://www.youtube.com/watch?v=Tk4O7WSZsTw

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